54515771 has 2 divisors, whose sum is σ = 54515772. Its totient is φ = 54515770.

The previous prime is 54515759. The next prime is 54515779. The reversal of 54515771 is 17751545.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54515771 is a prime.

It is not a weakly prime, because it can be changed into another prime (54515779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27257885 + 27257886.

It is an arithmetic number, because the mean of its divisors is an integer number (27257886).

Almost surely, 2^54515771 is an apocalyptic number.

54515771 is a deficient number, since it is larger than the sum of its proper divisors (1).

54515771 is an equidigital number, since it uses as much as digits as its factorization.

54515771 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24500, while the sum is 35.

The square root of 54515771 is about 7383.4795997551. The cubic root of 54515771 is about 379.1758941092.

The spelling of 54515771 in words is "fifty-four million, five hundred fifteen thousand, seven hundred seventy-one".